212101021111222 has 8 divisors (see below), whose sum is σ = 318273102760536. Its totient is φ = 106009986857712.

The previous prime is 212101021111207. The next prime is 212101021111237. The reversal of 212101021111222 is 222111120101212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212101021111207) and next prime (212101021111237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212101021111222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20261842408 + ... + 20261852875.

It is an arithmetic number, because the mean of its divisors is an integer number (39784137845067).

Almost surely, 2^{212101021111222} is an apocalyptic number.

212101021111222 is a deficient number, since it is larger than the sum of its proper divisors (106172081649314).

212101021111222 is a wasteful number, since it uses less digits than its factorization.

212101021111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40523697902.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212101021111222 its reverse (222111120101212), we get a palindrome (434212141212434).

The spelling of 212101021111222 in words is "two hundred twelve trillion, one hundred one billion, twenty-one million, one hundred eleven thousand, two hundred twenty-two".